jquery手机移动端九宫格抽奖特效代码

使用方法

			var luck = {
				index: 0, //当前转动到哪个位置，起点位置
				count: 0, //总共有多少个位置
				timer: 0, //setTimeout的ID，用clearTimeout清除
				speed: 20, //初始转动速度
				times: 0, //转动次数
				cycle: 50, //转动基本次数：即至少需要转动多少次再进入抽奖环节
				prize: -1, //中奖位置
				init: function(id) {
					if($("#" + id).find(".luck-unit").length > 0) {
						$luck = $("#" + id);
						$units = $luck.find(".luck-unit");
						this.obj = $luck;
						this.count = $units.length;
						$luck.find(".luck-unit-" + this.index).addClass("active");
					};
				},

				roll: function() {
					var index = this.index;
					var count = this.count;
					var luck = this.obj;
					$(luck).find(".luck-unit-" + index).removeClass("active");
					index += 1;
					if(index > count - 1) {
						index = 0;
					};
					$(luck).find(".luck-unit-" + index).addClass("active");
					this.index = index;
					return false;
				},
				stop: function(index) {
					this.prize = index;
					return false;
				}
			};

			function roll() {
				luck.times += 1;
				luck.roll();
				if(luck.times > luck.cycle + 10 && luck.prize == luck.index) {
					clearTimeout(luck.timer);
					luck.prize = -1;
					luck.times = 0;
					click = false;
				} else {
					if(luck.times < luck.cycle) { luck.speed -= 10; } else if(luck.times == luck.cycle) { var index = Math.random() * (luck.count) | 0; if(index > 5) {
							index = 7;
						} else {
							index = 5;
						}
						luck.prize = index; //最终中奖位置
					} else {
						if(luck.times > luck.cycle + 10 && ((luck.prize == 0 && luck.index == 7) || luck.prize == luck.index + 1)) {
							luck.speed += 110;
						} else {
							luck.speed += 20;
						}
					}
					if(luck.speed < 40) { luck.speed = 40; }; luck.timer = setTimeout(roll, luck.speed); } return false; } var click = false; window.onload = function() { luck.init('luck'); $("#btn").click(function() { setTimeout(function() { $(".cover").removeClass("dis_no"); $(".cover_box").removeClass("dis_no"); $("body,html").css({ "height": "100%", "overflow": "hidden" }) }, 4000); if(click) { return false; } else { luck.speed = 100; roll(); click = true; return false; } }); }; // 轮播图 var swiper = new Swiper('.draw-container', { direction: "vertical", autoplay: true, loop: true, }); //ios弹窗位置调整 $("input").bind('focus', function() { var top = document.body.scrollTop; $(window).scrollTop(top); }) $("input").bind('blur', function() { var top = document.body.scrollTop; $(window).scrollTop(top); }) //关闭弹窗 $(".close").on("click", function() { $(".cover").addClass("dis_no"); $(".cover_box").addClass("dis_no"); $("body,html").css({ "height": "100%", "overflow": "auto" }) }) $("#form_insure").on("click", function() { $(".cover_box").addClass("dis_no"); $(".result_box").removeClass("dis_no"); $("body,html").css({ "height": "100%", "overflow": "hidden" }) })